var a = "a-b=c12";
            var b = "a.b___c12";

            var a = "a-bc=12";
            var b = "a.b___c12";

            Console.WriteLine(String.Compare(a, b));

            //使用InvariantCulture
            Console.WriteLine(CultureInfo.InvariantCulture.CompareInfo.Compare(a, b, CompareOptions.IgnoreSymbols));
            //當前當前CultureInfo
            Console.WriteLine(CultureInfo.CurrentCulture.CompareInfo.Compare(a, b, CompareOptions.IgnoreSymbols));

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